[dougmoscrop]

I can't decide if I would enjoy reading real examples of these cycles. Just knowing how precarious the supply of natural rubber is, and how inadequate artifical solutions are (including prospective ones from continental), makes me uneasy, but I'll be damned if there isn't some kind of allure there as well.

It seems almost certain that climate change is going to severely disrupt several of these cycles in decade or two, and a slightly different failure mode of what you allude to in C. is that our tech and processes become capped before we adequately scale up renewables, and overshoot kicks in and it's actually a negative feedback loop that certainly doesn't just stop with computers.